1 /* 2 * Driver for Regulator part of Palmas PMIC Chips 3 * 4 * Copyright 2011-2013 Texas Instruments Inc. 5 * 6 * Author: Graeme Gregory <gg@slimlogic.co.uk> 7 * Author: Ian Lartey <ian@slimlogic.co.uk> 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 */ 15 16 #include <linux/kernel.h> 17 #include <linux/module.h> 18 #include <linux/init.h> 19 #include <linux/err.h> 20 #include <linux/platform_device.h> 21 #include <linux/regulator/driver.h> 22 #include <linux/regulator/machine.h> 23 #include <linux/slab.h> 24 #include <linux/regmap.h> 25 #include <linux/mfd/palmas.h> 26 #include <linux/of.h> 27 #include <linux/of_platform.h> 28 #include <linux/regulator/of_regulator.h> 29 30 static const struct regulator_linear_range smps_low_ranges[] = { 31 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), 32 REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0), 33 REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000), 34 REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0), 35 }; 36 37 static const struct regulator_linear_range smps_high_ranges[] = { 38 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), 39 REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0), 40 REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000), 41 REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0), 42 }; 43 44 static struct palmas_regs_info palmas_generic_regs_info[] = { 45 { 46 .name = "SMPS12", 47 .sname = "smps1-in", 48 .vsel_addr = PALMAS_SMPS12_VOLTAGE, 49 .ctrl_addr = PALMAS_SMPS12_CTRL, 50 .tstep_addr = PALMAS_SMPS12_TSTEP, 51 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, 52 }, 53 { 54 .name = "SMPS123", 55 .sname = "smps1-in", 56 .vsel_addr = PALMAS_SMPS12_VOLTAGE, 57 .ctrl_addr = PALMAS_SMPS12_CTRL, 58 .tstep_addr = PALMAS_SMPS12_TSTEP, 59 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, 60 }, 61 { 62 .name = "SMPS3", 63 .sname = "smps3-in", 64 .vsel_addr = PALMAS_SMPS3_VOLTAGE, 65 .ctrl_addr = PALMAS_SMPS3_CTRL, 66 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3, 67 }, 68 { 69 .name = "SMPS45", 70 .sname = "smps4-in", 71 .vsel_addr = PALMAS_SMPS45_VOLTAGE, 72 .ctrl_addr = PALMAS_SMPS45_CTRL, 73 .tstep_addr = PALMAS_SMPS45_TSTEP, 74 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, 75 }, 76 { 77 .name = "SMPS457", 78 .sname = "smps4-in", 79 .vsel_addr = PALMAS_SMPS45_VOLTAGE, 80 .ctrl_addr = PALMAS_SMPS45_CTRL, 81 .tstep_addr = PALMAS_SMPS45_TSTEP, 82 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, 83 }, 84 { 85 .name = "SMPS6", 86 .sname = "smps6-in", 87 .vsel_addr = PALMAS_SMPS6_VOLTAGE, 88 .ctrl_addr = PALMAS_SMPS6_CTRL, 89 .tstep_addr = PALMAS_SMPS6_TSTEP, 90 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6, 91 }, 92 { 93 .name = "SMPS7", 94 .sname = "smps7-in", 95 .vsel_addr = PALMAS_SMPS7_VOLTAGE, 96 .ctrl_addr = PALMAS_SMPS7_CTRL, 97 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7, 98 }, 99 { 100 .name = "SMPS8", 101 .sname = "smps8-in", 102 .vsel_addr = PALMAS_SMPS8_VOLTAGE, 103 .ctrl_addr = PALMAS_SMPS8_CTRL, 104 .tstep_addr = PALMAS_SMPS8_TSTEP, 105 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8, 106 }, 107 { 108 .name = "SMPS9", 109 .sname = "smps9-in", 110 .vsel_addr = PALMAS_SMPS9_VOLTAGE, 111 .ctrl_addr = PALMAS_SMPS9_CTRL, 112 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9, 113 }, 114 { 115 .name = "SMPS10_OUT2", 116 .sname = "smps10-in", 117 .ctrl_addr = PALMAS_SMPS10_CTRL, 118 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, 119 }, 120 { 121 .name = "SMPS10_OUT1", 122 .sname = "smps10-out2", 123 .ctrl_addr = PALMAS_SMPS10_CTRL, 124 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, 125 }, 126 { 127 .name = "LDO1", 128 .sname = "ldo1-in", 129 .vsel_addr = PALMAS_LDO1_VOLTAGE, 130 .ctrl_addr = PALMAS_LDO1_CTRL, 131 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1, 132 }, 133 { 134 .name = "LDO2", 135 .sname = "ldo2-in", 136 .vsel_addr = PALMAS_LDO2_VOLTAGE, 137 .ctrl_addr = PALMAS_LDO2_CTRL, 138 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2, 139 }, 140 { 141 .name = "LDO3", 142 .sname = "ldo3-in", 143 .vsel_addr = PALMAS_LDO3_VOLTAGE, 144 .ctrl_addr = PALMAS_LDO3_CTRL, 145 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3, 146 }, 147 { 148 .name = "LDO4", 149 .sname = "ldo4-in", 150 .vsel_addr = PALMAS_LDO4_VOLTAGE, 151 .ctrl_addr = PALMAS_LDO4_CTRL, 152 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4, 153 }, 154 { 155 .name = "LDO5", 156 .sname = "ldo5-in", 157 .vsel_addr = PALMAS_LDO5_VOLTAGE, 158 .ctrl_addr = PALMAS_LDO5_CTRL, 159 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5, 160 }, 161 { 162 .name = "LDO6", 163 .sname = "ldo6-in", 164 .vsel_addr = PALMAS_LDO6_VOLTAGE, 165 .ctrl_addr = PALMAS_LDO6_CTRL, 166 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6, 167 }, 168 { 169 .name = "LDO7", 170 .sname = "ldo7-in", 171 .vsel_addr = PALMAS_LDO7_VOLTAGE, 172 .ctrl_addr = PALMAS_LDO7_CTRL, 173 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7, 174 }, 175 { 176 .name = "LDO8", 177 .sname = "ldo8-in", 178 .vsel_addr = PALMAS_LDO8_VOLTAGE, 179 .ctrl_addr = PALMAS_LDO8_CTRL, 180 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8, 181 }, 182 { 183 .name = "LDO9", 184 .sname = "ldo9-in", 185 .vsel_addr = PALMAS_LDO9_VOLTAGE, 186 .ctrl_addr = PALMAS_LDO9_CTRL, 187 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9, 188 }, 189 { 190 .name = "LDOLN", 191 .sname = "ldoln-in", 192 .vsel_addr = PALMAS_LDOLN_VOLTAGE, 193 .ctrl_addr = PALMAS_LDOLN_CTRL, 194 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN, 195 }, 196 { 197 .name = "LDOUSB", 198 .sname = "ldousb-in", 199 .vsel_addr = PALMAS_LDOUSB_VOLTAGE, 200 .ctrl_addr = PALMAS_LDOUSB_CTRL, 201 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB, 202 }, 203 { 204 .name = "REGEN1", 205 .ctrl_addr = PALMAS_REGEN1_CTRL, 206 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1, 207 }, 208 { 209 .name = "REGEN2", 210 .ctrl_addr = PALMAS_REGEN2_CTRL, 211 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2, 212 }, 213 { 214 .name = "REGEN3", 215 .ctrl_addr = PALMAS_REGEN3_CTRL, 216 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3, 217 }, 218 { 219 .name = "SYSEN1", 220 .ctrl_addr = PALMAS_SYSEN1_CTRL, 221 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1, 222 }, 223 { 224 .name = "SYSEN2", 225 .ctrl_addr = PALMAS_SYSEN2_CTRL, 226 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2, 227 }, 228 }; 229 230 static struct palmas_regs_info tps65917_regs_info[] = { 231 { 232 .name = "SMPS1", 233 .sname = "smps1-in", 234 .vsel_addr = TPS65917_SMPS1_VOLTAGE, 235 .ctrl_addr = TPS65917_SMPS1_CTRL, 236 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1, 237 }, 238 { 239 .name = "SMPS2", 240 .sname = "smps2-in", 241 .vsel_addr = TPS65917_SMPS2_VOLTAGE, 242 .ctrl_addr = TPS65917_SMPS2_CTRL, 243 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2, 244 }, 245 { 246 .name = "SMPS3", 247 .sname = "smps3-in", 248 .vsel_addr = TPS65917_SMPS3_VOLTAGE, 249 .ctrl_addr = TPS65917_SMPS3_CTRL, 250 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3, 251 }, 252 { 253 .name = "SMPS4", 254 .sname = "smps4-in", 255 .vsel_addr = TPS65917_SMPS4_VOLTAGE, 256 .ctrl_addr = TPS65917_SMPS4_CTRL, 257 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4, 258 }, 259 { 260 .name = "SMPS5", 261 .sname = "smps5-in", 262 .vsel_addr = TPS65917_SMPS5_VOLTAGE, 263 .ctrl_addr = TPS65917_SMPS5_CTRL, 264 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5, 265 }, 266 { 267 .name = "SMPS12", 268 .sname = "smps1-in", 269 .vsel_addr = TPS65917_SMPS1_VOLTAGE, 270 .ctrl_addr = TPS65917_SMPS1_CTRL, 271 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS12, 272 }, 273 { 274 .name = "LDO1", 275 .sname = "ldo1-in", 276 .vsel_addr = TPS65917_LDO1_VOLTAGE, 277 .ctrl_addr = TPS65917_LDO1_CTRL, 278 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1, 279 }, 280 { 281 .name = "LDO2", 282 .sname = "ldo2-in", 283 .vsel_addr = TPS65917_LDO2_VOLTAGE, 284 .ctrl_addr = TPS65917_LDO2_CTRL, 285 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2, 286 }, 287 { 288 .name = "LDO3", 289 .sname = "ldo3-in", 290 .vsel_addr = TPS65917_LDO3_VOLTAGE, 291 .ctrl_addr = TPS65917_LDO3_CTRL, 292 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3, 293 }, 294 { 295 .name = "LDO4", 296 .sname = "ldo4-in", 297 .vsel_addr = TPS65917_LDO4_VOLTAGE, 298 .ctrl_addr = TPS65917_LDO4_CTRL, 299 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4, 300 }, 301 { 302 .name = "LDO5", 303 .sname = "ldo5-in", 304 .vsel_addr = TPS65917_LDO5_VOLTAGE, 305 .ctrl_addr = TPS65917_LDO5_CTRL, 306 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5, 307 }, 308 { 309 .name = "REGEN1", 310 .ctrl_addr = TPS65917_REGEN1_CTRL, 311 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1, 312 }, 313 { 314 .name = "REGEN2", 315 .ctrl_addr = TPS65917_REGEN2_CTRL, 316 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2, 317 }, 318 { 319 .name = "REGEN3", 320 .ctrl_addr = TPS65917_REGEN3_CTRL, 321 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3, 322 }, 323 }; 324 325 #define EXTERNAL_REQUESTOR(_id, _offset, _pos) \ 326 [PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \ 327 .id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \ 328 .reg_offset = _offset, \ 329 .bit_pos = _pos, \ 330 } 331 332 static struct palmas_sleep_requestor_info palma_sleep_req_info[] = { 333 EXTERNAL_REQUESTOR(REGEN1, 0, 0), 334 EXTERNAL_REQUESTOR(REGEN2, 0, 1), 335 EXTERNAL_REQUESTOR(SYSEN1, 0, 2), 336 EXTERNAL_REQUESTOR(SYSEN2, 0, 3), 337 EXTERNAL_REQUESTOR(CLK32KG, 0, 4), 338 EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5), 339 EXTERNAL_REQUESTOR(REGEN3, 0, 6), 340 EXTERNAL_REQUESTOR(SMPS12, 1, 0), 341 EXTERNAL_REQUESTOR(SMPS3, 1, 1), 342 EXTERNAL_REQUESTOR(SMPS45, 1, 2), 343 EXTERNAL_REQUESTOR(SMPS6, 1, 3), 344 EXTERNAL_REQUESTOR(SMPS7, 1, 4), 345 EXTERNAL_REQUESTOR(SMPS8, 1, 5), 346 EXTERNAL_REQUESTOR(SMPS9, 1, 6), 347 EXTERNAL_REQUESTOR(SMPS10, 1, 7), 348 EXTERNAL_REQUESTOR(LDO1, 2, 0), 349 EXTERNAL_REQUESTOR(LDO2, 2, 1), 350 EXTERNAL_REQUESTOR(LDO3, 2, 2), 351 EXTERNAL_REQUESTOR(LDO4, 2, 3), 352 EXTERNAL_REQUESTOR(LDO5, 2, 4), 353 EXTERNAL_REQUESTOR(LDO6, 2, 5), 354 EXTERNAL_REQUESTOR(LDO7, 2, 6), 355 EXTERNAL_REQUESTOR(LDO8, 2, 7), 356 EXTERNAL_REQUESTOR(LDO9, 3, 0), 357 EXTERNAL_REQUESTOR(LDOLN, 3, 1), 358 EXTERNAL_REQUESTOR(LDOUSB, 3, 2), 359 }; 360 361 #define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \ 362 [TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \ 363 .id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \ 364 .reg_offset = _offset, \ 365 .bit_pos = _pos, \ 366 } 367 368 static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = { 369 EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0), 370 EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1), 371 EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6), 372 EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0), 373 EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1), 374 EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2), 375 EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3), 376 EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4), 377 EXTERNAL_REQUESTOR_TPS65917(SMPS12, 1, 5), 378 EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0), 379 EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1), 380 EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2), 381 EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3), 382 EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4), 383 }; 384 385 static const unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; 386 387 #define SMPS_CTRL_MODE_OFF 0x00 388 #define SMPS_CTRL_MODE_ON 0x01 389 #define SMPS_CTRL_MODE_ECO 0x02 390 #define SMPS_CTRL_MODE_PWM 0x03 391 392 #define PALMAS_SMPS_NUM_VOLTAGES 122 393 #define PALMAS_SMPS10_NUM_VOLTAGES 2 394 #define PALMAS_LDO_NUM_VOLTAGES 50 395 396 #define SMPS10_VSEL (1<<3) 397 #define SMPS10_BOOST_EN (1<<2) 398 #define SMPS10_BYPASS_EN (1<<1) 399 #define SMPS10_SWITCH_EN (1<<0) 400 401 #define REGULATOR_SLAVE 0 402 403 static int palmas_smps_read(struct palmas *palmas, unsigned int reg, 404 unsigned int *dest) 405 { 406 unsigned int addr; 407 408 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); 409 410 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); 411 } 412 413 static int palmas_smps_write(struct palmas *palmas, unsigned int reg, 414 unsigned int value) 415 { 416 unsigned int addr; 417 418 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); 419 420 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); 421 } 422 423 static int palmas_ldo_read(struct palmas *palmas, unsigned int reg, 424 unsigned int *dest) 425 { 426 unsigned int addr; 427 428 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); 429 430 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); 431 } 432 433 static int palmas_ldo_write(struct palmas *palmas, unsigned int reg, 434 unsigned int value) 435 { 436 unsigned int addr; 437 438 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); 439 440 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); 441 } 442 443 static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) 444 { 445 int id = rdev_get_id(dev); 446 int ret; 447 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 448 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 449 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 450 unsigned int reg; 451 bool rail_enable = true; 452 453 ret = palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®); 454 if (ret) 455 return ret; 456 457 reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 458 459 if (reg == SMPS_CTRL_MODE_OFF) 460 rail_enable = false; 461 462 switch (mode) { 463 case REGULATOR_MODE_NORMAL: 464 reg |= SMPS_CTRL_MODE_ON; 465 break; 466 case REGULATOR_MODE_IDLE: 467 reg |= SMPS_CTRL_MODE_ECO; 468 break; 469 case REGULATOR_MODE_FAST: 470 reg |= SMPS_CTRL_MODE_PWM; 471 break; 472 default: 473 return -EINVAL; 474 } 475 476 pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 477 if (rail_enable) 478 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg); 479 480 /* Switch the enable value to ensure this is used for enable */ 481 pmic->desc[id].enable_val = pmic->current_reg_mode[id]; 482 483 return 0; 484 } 485 486 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) 487 { 488 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 489 int id = rdev_get_id(dev); 490 unsigned int reg; 491 492 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 493 494 switch (reg) { 495 case SMPS_CTRL_MODE_ON: 496 return REGULATOR_MODE_NORMAL; 497 case SMPS_CTRL_MODE_ECO: 498 return REGULATOR_MODE_IDLE; 499 case SMPS_CTRL_MODE_PWM: 500 return REGULATOR_MODE_FAST; 501 } 502 503 return 0; 504 } 505 506 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, 507 int ramp_delay) 508 { 509 int id = rdev_get_id(rdev); 510 struct palmas_pmic *pmic = rdev_get_drvdata(rdev); 511 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 512 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 513 unsigned int reg = 0; 514 int ret; 515 516 /* SMPS3 and SMPS7 do not have tstep_addr setting */ 517 switch (id) { 518 case PALMAS_REG_SMPS3: 519 case PALMAS_REG_SMPS7: 520 return 0; 521 } 522 523 if (ramp_delay <= 0) 524 reg = 0; 525 else if (ramp_delay <= 2500) 526 reg = 3; 527 else if (ramp_delay <= 5000) 528 reg = 2; 529 else 530 reg = 1; 531 532 ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg); 533 if (ret < 0) { 534 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); 535 return ret; 536 } 537 538 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; 539 return ret; 540 } 541 542 static const struct regulator_ops palmas_ops_smps = { 543 .is_enabled = regulator_is_enabled_regmap, 544 .enable = regulator_enable_regmap, 545 .disable = regulator_disable_regmap, 546 .set_mode = palmas_set_mode_smps, 547 .get_mode = palmas_get_mode_smps, 548 .get_voltage_sel = regulator_get_voltage_sel_regmap, 549 .set_voltage_sel = regulator_set_voltage_sel_regmap, 550 .list_voltage = regulator_list_voltage_linear_range, 551 .map_voltage = regulator_map_voltage_linear_range, 552 .set_voltage_time_sel = regulator_set_voltage_time_sel, 553 .set_ramp_delay = palmas_smps_set_ramp_delay, 554 }; 555 556 static const struct regulator_ops palmas_ops_ext_control_smps = { 557 .set_mode = palmas_set_mode_smps, 558 .get_mode = palmas_get_mode_smps, 559 .get_voltage_sel = regulator_get_voltage_sel_regmap, 560 .set_voltage_sel = regulator_set_voltage_sel_regmap, 561 .list_voltage = regulator_list_voltage_linear_range, 562 .map_voltage = regulator_map_voltage_linear_range, 563 .set_voltage_time_sel = regulator_set_voltage_time_sel, 564 .set_ramp_delay = palmas_smps_set_ramp_delay, 565 }; 566 567 static const struct regulator_ops palmas_ops_smps10 = { 568 .is_enabled = regulator_is_enabled_regmap, 569 .enable = regulator_enable_regmap, 570 .disable = regulator_disable_regmap, 571 .get_voltage_sel = regulator_get_voltage_sel_regmap, 572 .set_voltage_sel = regulator_set_voltage_sel_regmap, 573 .list_voltage = regulator_list_voltage_linear, 574 .map_voltage = regulator_map_voltage_linear, 575 .set_bypass = regulator_set_bypass_regmap, 576 .get_bypass = regulator_get_bypass_regmap, 577 }; 578 579 static const struct regulator_ops tps65917_ops_smps = { 580 .is_enabled = regulator_is_enabled_regmap, 581 .enable = regulator_enable_regmap, 582 .disable = regulator_disable_regmap, 583 .set_mode = palmas_set_mode_smps, 584 .get_mode = palmas_get_mode_smps, 585 .get_voltage_sel = regulator_get_voltage_sel_regmap, 586 .set_voltage_sel = regulator_set_voltage_sel_regmap, 587 .list_voltage = regulator_list_voltage_linear_range, 588 .map_voltage = regulator_map_voltage_linear_range, 589 .set_voltage_time_sel = regulator_set_voltage_time_sel, 590 }; 591 592 static const struct regulator_ops tps65917_ops_ext_control_smps = { 593 .set_mode = palmas_set_mode_smps, 594 .get_mode = palmas_get_mode_smps, 595 .get_voltage_sel = regulator_get_voltage_sel_regmap, 596 .set_voltage_sel = regulator_set_voltage_sel_regmap, 597 .list_voltage = regulator_list_voltage_linear_range, 598 .map_voltage = regulator_map_voltage_linear_range, 599 }; 600 601 static int palmas_is_enabled_ldo(struct regulator_dev *dev) 602 { 603 int id = rdev_get_id(dev); 604 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 605 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 606 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 607 unsigned int reg; 608 609 palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®); 610 611 reg &= PALMAS_LDO1_CTRL_STATUS; 612 613 return !!(reg); 614 } 615 616 static const struct regulator_ops palmas_ops_ldo = { 617 .is_enabled = palmas_is_enabled_ldo, 618 .enable = regulator_enable_regmap, 619 .disable = regulator_disable_regmap, 620 .get_voltage_sel = regulator_get_voltage_sel_regmap, 621 .set_voltage_sel = regulator_set_voltage_sel_regmap, 622 .list_voltage = regulator_list_voltage_linear, 623 .map_voltage = regulator_map_voltage_linear, 624 }; 625 626 static const struct regulator_ops palmas_ops_ldo9 = { 627 .is_enabled = palmas_is_enabled_ldo, 628 .enable = regulator_enable_regmap, 629 .disable = regulator_disable_regmap, 630 .get_voltage_sel = regulator_get_voltage_sel_regmap, 631 .set_voltage_sel = regulator_set_voltage_sel_regmap, 632 .list_voltage = regulator_list_voltage_linear, 633 .map_voltage = regulator_map_voltage_linear, 634 .set_bypass = regulator_set_bypass_regmap, 635 .get_bypass = regulator_get_bypass_regmap, 636 }; 637 638 static const struct regulator_ops palmas_ops_ext_control_ldo = { 639 .get_voltage_sel = regulator_get_voltage_sel_regmap, 640 .set_voltage_sel = regulator_set_voltage_sel_regmap, 641 .list_voltage = regulator_list_voltage_linear, 642 .map_voltage = regulator_map_voltage_linear, 643 }; 644 645 static const struct regulator_ops palmas_ops_extreg = { 646 .is_enabled = regulator_is_enabled_regmap, 647 .enable = regulator_enable_regmap, 648 .disable = regulator_disable_regmap, 649 }; 650 651 static const struct regulator_ops palmas_ops_ext_control_extreg = { 652 }; 653 654 static const struct regulator_ops tps65917_ops_ldo = { 655 .is_enabled = palmas_is_enabled_ldo, 656 .enable = regulator_enable_regmap, 657 .disable = regulator_disable_regmap, 658 .get_voltage_sel = regulator_get_voltage_sel_regmap, 659 .set_voltage_sel = regulator_set_voltage_sel_regmap, 660 .list_voltage = regulator_list_voltage_linear, 661 .map_voltage = regulator_map_voltage_linear, 662 .set_voltage_time_sel = regulator_set_voltage_time_sel, 663 }; 664 665 static const struct regulator_ops tps65917_ops_ldo_1_2 = { 666 .is_enabled = palmas_is_enabled_ldo, 667 .enable = regulator_enable_regmap, 668 .disable = regulator_disable_regmap, 669 .get_voltage_sel = regulator_get_voltage_sel_regmap, 670 .set_voltage_sel = regulator_set_voltage_sel_regmap, 671 .list_voltage = regulator_list_voltage_linear, 672 .map_voltage = regulator_map_voltage_linear, 673 .set_voltage_time_sel = regulator_set_voltage_time_sel, 674 .set_bypass = regulator_set_bypass_regmap, 675 .get_bypass = regulator_get_bypass_regmap, 676 }; 677 678 static int palmas_regulator_config_external(struct palmas *palmas, int id, 679 struct palmas_reg_init *reg_init) 680 { 681 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 682 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 683 int ret; 684 685 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id, 686 reg_init->roof_floor, true); 687 if (ret < 0) 688 dev_err(palmas->dev, 689 "Ext control config for regulator %d failed %d\n", 690 id, ret); 691 return ret; 692 } 693 694 /* 695 * setup the hardware based sleep configuration of the SMPS/LDO regulators 696 * from the platform data. This is different to the software based control 697 * supported by the regulator framework as it is controlled by toggling 698 * pins on the PMIC such as PREQ, SYSEN, ... 699 */ 700 static int palmas_smps_init(struct palmas *palmas, int id, 701 struct palmas_reg_init *reg_init) 702 { 703 unsigned int reg; 704 int ret; 705 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 706 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 707 unsigned int addr = rinfo->ctrl_addr; 708 709 ret = palmas_smps_read(palmas, addr, ®); 710 if (ret) 711 return ret; 712 713 switch (id) { 714 case PALMAS_REG_SMPS10_OUT1: 715 case PALMAS_REG_SMPS10_OUT2: 716 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; 717 if (reg_init->mode_sleep) 718 reg |= reg_init->mode_sleep << 719 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; 720 break; 721 default: 722 if (reg_init->warm_reset) 723 reg |= PALMAS_SMPS12_CTRL_WR_S; 724 else 725 reg &= ~PALMAS_SMPS12_CTRL_WR_S; 726 727 if (reg_init->roof_floor) 728 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 729 else 730 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 731 732 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; 733 if (reg_init->mode_sleep) 734 reg |= reg_init->mode_sleep << 735 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; 736 } 737 738 ret = palmas_smps_write(palmas, addr, reg); 739 if (ret) 740 return ret; 741 742 if (rinfo->vsel_addr && reg_init->vsel) { 743 744 reg = reg_init->vsel; 745 746 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg); 747 if (ret) 748 return ret; 749 } 750 751 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && 752 (id != PALMAS_REG_SMPS10_OUT2)) { 753 /* Enable externally controlled regulator */ 754 ret = palmas_smps_read(palmas, addr, ®); 755 if (ret < 0) 756 return ret; 757 758 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { 759 reg |= SMPS_CTRL_MODE_ON; 760 ret = palmas_smps_write(palmas, addr, reg); 761 if (ret < 0) 762 return ret; 763 } 764 return palmas_regulator_config_external(palmas, id, reg_init); 765 } 766 return 0; 767 } 768 769 static int palmas_ldo_init(struct palmas *palmas, int id, 770 struct palmas_reg_init *reg_init) 771 { 772 unsigned int reg; 773 unsigned int addr; 774 int ret; 775 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 776 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 777 778 addr = rinfo->ctrl_addr; 779 780 ret = palmas_ldo_read(palmas, addr, ®); 781 if (ret) 782 return ret; 783 784 if (reg_init->warm_reset) 785 reg |= PALMAS_LDO1_CTRL_WR_S; 786 else 787 reg &= ~PALMAS_LDO1_CTRL_WR_S; 788 789 if (reg_init->mode_sleep) 790 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; 791 else 792 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; 793 794 ret = palmas_ldo_write(palmas, addr, reg); 795 if (ret) 796 return ret; 797 798 if (reg_init->roof_floor) { 799 /* Enable externally controlled regulator */ 800 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, 801 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, 802 PALMAS_LDO1_CTRL_MODE_ACTIVE); 803 if (ret < 0) { 804 dev_err(palmas->dev, 805 "LDO Register 0x%02x update failed %d\n", 806 addr, ret); 807 return ret; 808 } 809 return palmas_regulator_config_external(palmas, id, reg_init); 810 } 811 return 0; 812 } 813 814 static int palmas_extreg_init(struct palmas *palmas, int id, 815 struct palmas_reg_init *reg_init) 816 { 817 unsigned int addr; 818 int ret; 819 unsigned int val = 0; 820 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 821 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 822 823 addr = rinfo->ctrl_addr; 824 825 if (reg_init->mode_sleep) 826 val = PALMAS_REGEN1_CTRL_MODE_SLEEP; 827 828 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 829 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); 830 if (ret < 0) { 831 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", 832 addr, ret); 833 return ret; 834 } 835 836 if (reg_init->roof_floor) { 837 /* Enable externally controlled regulator */ 838 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 839 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, 840 PALMAS_REGEN1_CTRL_MODE_ACTIVE); 841 if (ret < 0) { 842 dev_err(palmas->dev, 843 "Resource Register 0x%02x update failed %d\n", 844 addr, ret); 845 return ret; 846 } 847 return palmas_regulator_config_external(palmas, id, reg_init); 848 } 849 return 0; 850 } 851 852 static void palmas_enable_ldo8_track(struct palmas *palmas) 853 { 854 unsigned int reg; 855 unsigned int addr; 856 int ret; 857 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 858 struct palmas_regs_info *rinfo; 859 860 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8]; 861 addr = rinfo->ctrl_addr; 862 863 ret = palmas_ldo_read(palmas, addr, ®); 864 if (ret) { 865 dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); 866 return; 867 } 868 869 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; 870 ret = palmas_ldo_write(palmas, addr, reg); 871 if (ret < 0) { 872 dev_err(palmas->dev, "Error in enabling tracking mode\n"); 873 return; 874 } 875 /* 876 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 877 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, 878 * and can be set from 0.45 to 1.65 V. 879 */ 880 addr = rinfo->vsel_addr; 881 ret = palmas_ldo_read(palmas, addr, ®); 882 if (ret) { 883 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); 884 return; 885 } 886 887 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; 888 ret = palmas_ldo_write(palmas, addr, reg); 889 if (ret < 0) 890 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); 891 892 return; 893 } 894 895 static int palmas_ldo_registration(struct palmas_pmic *pmic, 896 struct palmas_pmic_driver_data *ddata, 897 struct palmas_pmic_platform_data *pdata, 898 const char *pdev_name, 899 struct regulator_config config) 900 { 901 int id, ret; 902 struct regulator_dev *rdev; 903 struct palmas_reg_init *reg_init; 904 struct palmas_regs_info *rinfo; 905 struct regulator_desc *desc; 906 907 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 908 if (pdata && pdata->reg_init[id]) 909 reg_init = pdata->reg_init[id]; 910 else 911 reg_init = NULL; 912 913 rinfo = &ddata->palmas_regs_info[id]; 914 /* Miss out regulators which are not available due 915 * to alternate functions. 916 */ 917 918 /* Register the regulators */ 919 desc = &pmic->desc[id]; 920 desc->name = rinfo->name; 921 desc->id = id; 922 desc->type = REGULATOR_VOLTAGE; 923 desc->owner = THIS_MODULE; 924 925 if (id < PALMAS_REG_REGEN1) { 926 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 927 if (reg_init && reg_init->roof_floor) 928 desc->ops = &palmas_ops_ext_control_ldo; 929 else 930 desc->ops = &palmas_ops_ldo; 931 desc->min_uV = 900000; 932 desc->uV_step = 50000; 933 desc->linear_min_sel = 1; 934 desc->enable_time = 500; 935 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 936 rinfo->vsel_addr); 937 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 938 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 939 rinfo->ctrl_addr); 940 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 941 942 /* Check if LDO8 is in tracking mode or not */ 943 if (pdata && (id == PALMAS_REG_LDO8) && 944 pdata->enable_ldo8_tracking) { 945 palmas_enable_ldo8_track(pmic->palmas); 946 desc->min_uV = 450000; 947 desc->uV_step = 25000; 948 } 949 950 /* LOD6 in vibrator mode will have enable time 2000us */ 951 if (pdata && pdata->ldo6_vibrator && 952 (id == PALMAS_REG_LDO6)) 953 desc->enable_time = 2000; 954 955 if (id == PALMAS_REG_LDO9) { 956 desc->ops = &palmas_ops_ldo9; 957 desc->bypass_reg = desc->enable_reg; 958 desc->bypass_val_on = 959 PALMAS_LDO9_CTRL_LDO_BYPASS_EN; 960 desc->bypass_mask = 961 PALMAS_LDO9_CTRL_LDO_BYPASS_EN; 962 } 963 } else { 964 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3) 965 continue; 966 967 desc->n_voltages = 1; 968 if (reg_init && reg_init->roof_floor) 969 desc->ops = &palmas_ops_ext_control_extreg; 970 else 971 desc->ops = &palmas_ops_extreg; 972 desc->enable_reg = 973 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 974 rinfo->ctrl_addr); 975 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 976 } 977 978 if (pdata) 979 config.init_data = pdata->reg_data[id]; 980 else 981 config.init_data = NULL; 982 983 desc->supply_name = rinfo->sname; 984 config.of_node = ddata->palmas_matches[id].of_node; 985 986 rdev = devm_regulator_register(pmic->dev, desc, &config); 987 if (IS_ERR(rdev)) { 988 dev_err(pmic->dev, 989 "failed to register %s regulator\n", 990 pdev_name); 991 return PTR_ERR(rdev); 992 } 993 994 /* Save regulator for cleanup */ 995 pmic->rdev[id] = rdev; 996 997 /* Initialise sleep/init values from platform data */ 998 if (pdata) { 999 reg_init = pdata->reg_init[id]; 1000 if (reg_init) { 1001 if (id <= ddata->ldo_end) 1002 ret = palmas_ldo_init(pmic->palmas, id, 1003 reg_init); 1004 else 1005 ret = palmas_extreg_init(pmic->palmas, 1006 id, reg_init); 1007 if (ret) 1008 return ret; 1009 } 1010 } 1011 } 1012 1013 return 0; 1014 } 1015 1016 static int tps65917_ldo_registration(struct palmas_pmic *pmic, 1017 struct palmas_pmic_driver_data *ddata, 1018 struct palmas_pmic_platform_data *pdata, 1019 const char *pdev_name, 1020 struct regulator_config config) 1021 { 1022 int id, ret; 1023 struct regulator_dev *rdev; 1024 struct palmas_reg_init *reg_init; 1025 struct palmas_regs_info *rinfo; 1026 struct regulator_desc *desc; 1027 1028 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 1029 if (pdata && pdata->reg_init[id]) 1030 reg_init = pdata->reg_init[id]; 1031 else 1032 reg_init = NULL; 1033 1034 /* Miss out regulators which are not available due 1035 * to alternate functions. 1036 */ 1037 rinfo = &ddata->palmas_regs_info[id]; 1038 1039 /* Register the regulators */ 1040 desc = &pmic->desc[id]; 1041 desc->name = rinfo->name; 1042 desc->id = id; 1043 desc->type = REGULATOR_VOLTAGE; 1044 desc->owner = THIS_MODULE; 1045 1046 if (id < TPS65917_REG_REGEN1) { 1047 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 1048 if (reg_init && reg_init->roof_floor) 1049 desc->ops = &palmas_ops_ext_control_ldo; 1050 else 1051 desc->ops = &tps65917_ops_ldo; 1052 desc->min_uV = 900000; 1053 desc->uV_step = 50000; 1054 desc->linear_min_sel = 1; 1055 desc->enable_time = 500; 1056 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1057 rinfo->vsel_addr); 1058 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 1059 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1060 rinfo->ctrl_addr); 1061 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 1062 /* 1063 * To be confirmed. Discussion on going with PMIC Team. 1064 * It is of the order of ~60mV/uS. 1065 */ 1066 desc->ramp_delay = 2500; 1067 if (id == TPS65917_REG_LDO1 || 1068 id == TPS65917_REG_LDO2) { 1069 desc->ops = &tps65917_ops_ldo_1_2; 1070 desc->bypass_reg = desc->enable_reg; 1071 desc->bypass_val_on = 1072 TPS65917_LDO1_CTRL_BYPASS_EN; 1073 desc->bypass_mask = 1074 TPS65917_LDO1_CTRL_BYPASS_EN; 1075 } 1076 } else { 1077 desc->n_voltages = 1; 1078 if (reg_init && reg_init->roof_floor) 1079 desc->ops = &palmas_ops_ext_control_extreg; 1080 else 1081 desc->ops = &palmas_ops_extreg; 1082 desc->enable_reg = 1083 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 1084 rinfo->ctrl_addr); 1085 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 1086 } 1087 1088 if (pdata) 1089 config.init_data = pdata->reg_data[id]; 1090 else 1091 config.init_data = NULL; 1092 1093 desc->supply_name = rinfo->sname; 1094 config.of_node = ddata->palmas_matches[id].of_node; 1095 1096 rdev = devm_regulator_register(pmic->dev, desc, &config); 1097 if (IS_ERR(rdev)) { 1098 dev_err(pmic->dev, 1099 "failed to register %s regulator\n", 1100 pdev_name); 1101 return PTR_ERR(rdev); 1102 } 1103 1104 /* Save regulator for cleanup */ 1105 pmic->rdev[id] = rdev; 1106 1107 /* Initialise sleep/init values from platform data */ 1108 if (pdata) { 1109 reg_init = pdata->reg_init[id]; 1110 if (reg_init) { 1111 if (id < TPS65917_REG_REGEN1) 1112 ret = palmas_ldo_init(pmic->palmas, 1113 id, reg_init); 1114 else 1115 ret = palmas_extreg_init(pmic->palmas, 1116 id, reg_init); 1117 if (ret) 1118 return ret; 1119 } 1120 } 1121 } 1122 1123 return 0; 1124 } 1125 1126 static int palmas_smps_registration(struct palmas_pmic *pmic, 1127 struct palmas_pmic_driver_data *ddata, 1128 struct palmas_pmic_platform_data *pdata, 1129 const char *pdev_name, 1130 struct regulator_config config) 1131 { 1132 int id, ret; 1133 unsigned int addr, reg; 1134 struct regulator_dev *rdev; 1135 struct palmas_reg_init *reg_init; 1136 struct palmas_regs_info *rinfo; 1137 struct regulator_desc *desc; 1138 1139 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1140 bool ramp_delay_support = false; 1141 1142 /* 1143 * Miss out regulators which are not available due 1144 * to slaving configurations. 1145 */ 1146 switch (id) { 1147 case PALMAS_REG_SMPS12: 1148 case PALMAS_REG_SMPS3: 1149 if (pmic->smps123) 1150 continue; 1151 if (id == PALMAS_REG_SMPS12) 1152 ramp_delay_support = true; 1153 break; 1154 case PALMAS_REG_SMPS123: 1155 if (!pmic->smps123) 1156 continue; 1157 ramp_delay_support = true; 1158 break; 1159 case PALMAS_REG_SMPS45: 1160 case PALMAS_REG_SMPS7: 1161 if (pmic->smps457) 1162 continue; 1163 if (id == PALMAS_REG_SMPS45) 1164 ramp_delay_support = true; 1165 break; 1166 case PALMAS_REG_SMPS457: 1167 if (!pmic->smps457) 1168 continue; 1169 ramp_delay_support = true; 1170 break; 1171 case PALMAS_REG_SMPS10_OUT1: 1172 case PALMAS_REG_SMPS10_OUT2: 1173 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST)) 1174 continue; 1175 } 1176 rinfo = &ddata->palmas_regs_info[id]; 1177 desc = &pmic->desc[id]; 1178 1179 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) 1180 ramp_delay_support = true; 1181 1182 if (ramp_delay_support) { 1183 addr = rinfo->tstep_addr; 1184 ret = palmas_smps_read(pmic->palmas, addr, ®); 1185 if (ret < 0) { 1186 dev_err(pmic->dev, 1187 "reading TSTEP reg failed: %d\n", ret); 1188 return ret; 1189 } 1190 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3]; 1191 pmic->ramp_delay[id] = desc->ramp_delay; 1192 } 1193 1194 /* Initialise sleep/init values from platform data */ 1195 if (pdata && pdata->reg_init[id]) { 1196 reg_init = pdata->reg_init[id]; 1197 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1198 if (ret) 1199 return ret; 1200 } else { 1201 reg_init = NULL; 1202 } 1203 1204 /* Register the regulators */ 1205 desc->name = rinfo->name; 1206 desc->id = id; 1207 1208 switch (id) { 1209 case PALMAS_REG_SMPS10_OUT1: 1210 case PALMAS_REG_SMPS10_OUT2: 1211 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; 1212 desc->ops = &palmas_ops_smps10; 1213 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1214 PALMAS_SMPS10_CTRL); 1215 desc->vsel_mask = SMPS10_VSEL; 1216 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1217 PALMAS_SMPS10_CTRL); 1218 if (id == PALMAS_REG_SMPS10_OUT1) 1219 desc->enable_mask = SMPS10_SWITCH_EN; 1220 else 1221 desc->enable_mask = SMPS10_BOOST_EN; 1222 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1223 PALMAS_SMPS10_CTRL); 1224 desc->bypass_val_on = SMPS10_BYPASS_EN; 1225 desc->bypass_mask = SMPS10_BYPASS_EN; 1226 desc->min_uV = 3750000; 1227 desc->uV_step = 1250000; 1228 break; 1229 default: 1230 /* 1231 * Read and store the RANGE bit for later use 1232 * This must be done before regulator is probed, 1233 * otherwise we error in probe with unsupportable 1234 * ranges. Read the current smps mode for later use. 1235 */ 1236 addr = rinfo->vsel_addr; 1237 desc->n_linear_ranges = 3; 1238 1239 ret = palmas_smps_read(pmic->palmas, addr, ®); 1240 if (ret) 1241 return ret; 1242 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) 1243 pmic->range[id] = 1; 1244 if (pmic->range[id]) 1245 desc->linear_ranges = smps_high_ranges; 1246 else 1247 desc->linear_ranges = smps_low_ranges; 1248 1249 if (reg_init && reg_init->roof_floor) 1250 desc->ops = &palmas_ops_ext_control_smps; 1251 else 1252 desc->ops = &palmas_ops_smps; 1253 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1254 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1255 rinfo->vsel_addr); 1256 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1257 1258 /* Read the smps mode for later use. */ 1259 addr = rinfo->ctrl_addr; 1260 ret = palmas_smps_read(pmic->palmas, addr, ®); 1261 if (ret) 1262 return ret; 1263 pmic->current_reg_mode[id] = reg & 1264 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1265 1266 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1267 rinfo->ctrl_addr); 1268 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1269 /* set_mode overrides this value */ 1270 desc->enable_val = SMPS_CTRL_MODE_ON; 1271 } 1272 1273 desc->type = REGULATOR_VOLTAGE; 1274 desc->owner = THIS_MODULE; 1275 1276 if (pdata) 1277 config.init_data = pdata->reg_data[id]; 1278 else 1279 config.init_data = NULL; 1280 1281 desc->supply_name = rinfo->sname; 1282 config.of_node = ddata->palmas_matches[id].of_node; 1283 1284 rdev = devm_regulator_register(pmic->dev, desc, &config); 1285 if (IS_ERR(rdev)) { 1286 dev_err(pmic->dev, 1287 "failed to register %s regulator\n", 1288 pdev_name); 1289 return PTR_ERR(rdev); 1290 } 1291 1292 /* Save regulator for cleanup */ 1293 pmic->rdev[id] = rdev; 1294 } 1295 1296 return 0; 1297 } 1298 1299 static int tps65917_smps_registration(struct palmas_pmic *pmic, 1300 struct palmas_pmic_driver_data *ddata, 1301 struct palmas_pmic_platform_data *pdata, 1302 const char *pdev_name, 1303 struct regulator_config config) 1304 { 1305 int id, ret; 1306 unsigned int addr, reg; 1307 struct regulator_dev *rdev; 1308 struct palmas_reg_init *reg_init; 1309 struct palmas_regs_info *rinfo; 1310 struct regulator_desc *desc; 1311 1312 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1313 /* 1314 * Miss out regulators which are not available due 1315 * to slaving configurations. 1316 */ 1317 desc = &pmic->desc[id]; 1318 desc->n_linear_ranges = 3; 1319 if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) && 1320 pmic->smps12) 1321 continue; 1322 1323 /* Initialise sleep/init values from platform data */ 1324 if (pdata && pdata->reg_init[id]) { 1325 reg_init = pdata->reg_init[id]; 1326 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1327 if (ret) 1328 return ret; 1329 } else { 1330 reg_init = NULL; 1331 } 1332 rinfo = &ddata->palmas_regs_info[id]; 1333 1334 /* Register the regulators */ 1335 desc->name = rinfo->name; 1336 desc->id = id; 1337 1338 /* 1339 * Read and store the RANGE bit for later use 1340 * This must be done before regulator is probed, 1341 * otherwise we error in probe with unsupportable 1342 * ranges. Read the current smps mode for later use. 1343 */ 1344 addr = rinfo->vsel_addr; 1345 1346 ret = palmas_smps_read(pmic->palmas, addr, ®); 1347 if (ret) 1348 return ret; 1349 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE) 1350 pmic->range[id] = 1; 1351 1352 if (pmic->range[id]) 1353 desc->linear_ranges = smps_high_ranges; 1354 else 1355 desc->linear_ranges = smps_low_ranges; 1356 1357 if (reg_init && reg_init->roof_floor) 1358 desc->ops = &tps65917_ops_ext_control_smps; 1359 else 1360 desc->ops = &tps65917_ops_smps; 1361 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1362 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1363 rinfo->vsel_addr); 1364 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1365 desc->ramp_delay = 2500; 1366 1367 /* Read the smps mode for later use. */ 1368 addr = rinfo->ctrl_addr; 1369 ret = palmas_smps_read(pmic->palmas, addr, ®); 1370 if (ret) 1371 return ret; 1372 pmic->current_reg_mode[id] = reg & 1373 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1374 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1375 rinfo->ctrl_addr); 1376 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1377 /* set_mode overrides this value */ 1378 desc->enable_val = SMPS_CTRL_MODE_ON; 1379 1380 desc->type = REGULATOR_VOLTAGE; 1381 desc->owner = THIS_MODULE; 1382 1383 if (pdata) 1384 config.init_data = pdata->reg_data[id]; 1385 else 1386 config.init_data = NULL; 1387 1388 desc->supply_name = rinfo->sname; 1389 config.of_node = ddata->palmas_matches[id].of_node; 1390 1391 rdev = devm_regulator_register(pmic->dev, desc, &config); 1392 if (IS_ERR(rdev)) { 1393 dev_err(pmic->dev, 1394 "failed to register %s regulator\n", 1395 pdev_name); 1396 return PTR_ERR(rdev); 1397 } 1398 1399 /* Save regulator for cleanup */ 1400 pmic->rdev[id] = rdev; 1401 } 1402 1403 return 0; 1404 } 1405 1406 static struct of_regulator_match palmas_matches[] = { 1407 { .name = "smps12", }, 1408 { .name = "smps123", }, 1409 { .name = "smps3", }, 1410 { .name = "smps45", }, 1411 { .name = "smps457", }, 1412 { .name = "smps6", }, 1413 { .name = "smps7", }, 1414 { .name = "smps8", }, 1415 { .name = "smps9", }, 1416 { .name = "smps10_out2", }, 1417 { .name = "smps10_out1", }, 1418 { .name = "ldo1", }, 1419 { .name = "ldo2", }, 1420 { .name = "ldo3", }, 1421 { .name = "ldo4", }, 1422 { .name = "ldo5", }, 1423 { .name = "ldo6", }, 1424 { .name = "ldo7", }, 1425 { .name = "ldo8", }, 1426 { .name = "ldo9", }, 1427 { .name = "ldoln", }, 1428 { .name = "ldousb", }, 1429 { .name = "regen1", }, 1430 { .name = "regen2", }, 1431 { .name = "regen3", }, 1432 { .name = "sysen1", }, 1433 { .name = "sysen2", }, 1434 }; 1435 1436 static struct of_regulator_match tps65917_matches[] = { 1437 { .name = "smps1", }, 1438 { .name = "smps2", }, 1439 { .name = "smps3", }, 1440 { .name = "smps4", }, 1441 { .name = "smps5", }, 1442 { .name = "smps12",}, 1443 { .name = "ldo1", }, 1444 { .name = "ldo2", }, 1445 { .name = "ldo3", }, 1446 { .name = "ldo4", }, 1447 { .name = "ldo5", }, 1448 { .name = "regen1", }, 1449 { .name = "regen2", }, 1450 { .name = "regen3", }, 1451 { .name = "sysen1", }, 1452 { .name = "sysen2", }, 1453 }; 1454 1455 static struct palmas_pmic_driver_data palmas_ddata = { 1456 .smps_start = PALMAS_REG_SMPS12, 1457 .smps_end = PALMAS_REG_SMPS10_OUT1, 1458 .ldo_begin = PALMAS_REG_LDO1, 1459 .ldo_end = PALMAS_REG_LDOUSB, 1460 .max_reg = PALMAS_NUM_REGS, 1461 .has_regen3 = true, 1462 .palmas_regs_info = palmas_generic_regs_info, 1463 .palmas_matches = palmas_matches, 1464 .sleep_req_info = palma_sleep_req_info, 1465 .smps_register = palmas_smps_registration, 1466 .ldo_register = palmas_ldo_registration, 1467 }; 1468 1469 static struct palmas_pmic_driver_data tps65917_ddata = { 1470 .smps_start = TPS65917_REG_SMPS1, 1471 .smps_end = TPS65917_REG_SMPS12, 1472 .ldo_begin = TPS65917_REG_LDO1, 1473 .ldo_end = TPS65917_REG_LDO5, 1474 .max_reg = TPS65917_NUM_REGS, 1475 .has_regen3 = true, 1476 .palmas_regs_info = tps65917_regs_info, 1477 .palmas_matches = tps65917_matches, 1478 .sleep_req_info = tps65917_sleep_req_info, 1479 .smps_register = tps65917_smps_registration, 1480 .ldo_register = tps65917_ldo_registration, 1481 }; 1482 1483 static int palmas_dt_to_pdata(struct device *dev, 1484 struct device_node *node, 1485 struct palmas_pmic_platform_data *pdata, 1486 struct palmas_pmic_driver_data *ddata) 1487 { 1488 struct device_node *regulators; 1489 u32 prop; 1490 int idx, ret; 1491 1492 regulators = of_get_child_by_name(node, "regulators"); 1493 if (!regulators) { 1494 dev_info(dev, "regulator node not found\n"); 1495 return 0; 1496 } 1497 1498 ret = of_regulator_match(dev, regulators, ddata->palmas_matches, 1499 ddata->max_reg); 1500 of_node_put(regulators); 1501 if (ret < 0) { 1502 dev_err(dev, "Error parsing regulator init data: %d\n", ret); 1503 return 0; 1504 } 1505 1506 for (idx = 0; idx < ddata->max_reg; idx++) { 1507 struct of_regulator_match *match; 1508 struct palmas_reg_init *rinit; 1509 struct device_node *np; 1510 1511 match = &ddata->palmas_matches[idx]; 1512 np = match->of_node; 1513 1514 if (!match->init_data || !np) 1515 continue; 1516 1517 rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL); 1518 if (!rinit) 1519 return -ENOMEM; 1520 1521 pdata->reg_data[idx] = match->init_data; 1522 pdata->reg_init[idx] = rinit; 1523 1524 rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset"); 1525 ret = of_property_read_u32(np, "ti,roof-floor", &prop); 1526 /* EINVAL: Property not found */ 1527 if (ret != -EINVAL) { 1528 int econtrol; 1529 1530 /* use default value, when no value is specified */ 1531 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1532 if (!ret) { 1533 switch (prop) { 1534 case 1: 1535 econtrol = PALMAS_EXT_CONTROL_ENABLE1; 1536 break; 1537 case 2: 1538 econtrol = PALMAS_EXT_CONTROL_ENABLE2; 1539 break; 1540 case 3: 1541 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1542 break; 1543 default: 1544 WARN_ON(1); 1545 dev_warn(dev, 1546 "%s: Invalid roof-floor option: %u\n", 1547 match->name, prop); 1548 break; 1549 } 1550 } 1551 rinit->roof_floor = econtrol; 1552 } 1553 1554 ret = of_property_read_u32(np, "ti,mode-sleep", &prop); 1555 if (!ret) 1556 rinit->mode_sleep = prop; 1557 1558 ret = of_property_read_bool(np, "ti,smps-range"); 1559 if (ret) 1560 rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE; 1561 1562 if (idx == PALMAS_REG_LDO8) 1563 pdata->enable_ldo8_tracking = of_property_read_bool( 1564 np, "ti,enable-ldo8-tracking"); 1565 } 1566 1567 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); 1568 1569 return 0; 1570 } 1571 1572 static const struct of_device_id of_palmas_match_tbl[] = { 1573 { 1574 .compatible = "ti,palmas-pmic", 1575 .data = &palmas_ddata, 1576 }, 1577 { 1578 .compatible = "ti,twl6035-pmic", 1579 .data = &palmas_ddata, 1580 }, 1581 { 1582 .compatible = "ti,twl6036-pmic", 1583 .data = &palmas_ddata, 1584 }, 1585 { 1586 .compatible = "ti,twl6037-pmic", 1587 .data = &palmas_ddata, 1588 }, 1589 { 1590 .compatible = "ti,tps65913-pmic", 1591 .data = &palmas_ddata, 1592 }, 1593 { 1594 .compatible = "ti,tps65914-pmic", 1595 .data = &palmas_ddata, 1596 }, 1597 { 1598 .compatible = "ti,tps80036-pmic", 1599 .data = &palmas_ddata, 1600 }, 1601 { 1602 .compatible = "ti,tps659038-pmic", 1603 .data = &palmas_ddata, 1604 }, 1605 { 1606 .compatible = "ti,tps65917-pmic", 1607 .data = &tps65917_ddata, 1608 }, 1609 { /* end */ } 1610 }; 1611 1612 static int palmas_regulators_probe(struct platform_device *pdev) 1613 { 1614 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); 1615 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); 1616 struct device_node *node = pdev->dev.of_node; 1617 struct palmas_pmic_driver_data *driver_data; 1618 struct regulator_config config = { }; 1619 struct palmas_pmic *pmic; 1620 const char *pdev_name; 1621 const struct of_device_id *match; 1622 int ret = 0; 1623 unsigned int reg; 1624 1625 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev); 1626 1627 if (!match) 1628 return -ENODATA; 1629 1630 driver_data = (struct palmas_pmic_driver_data *)match->data; 1631 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 1632 if (!pdata) 1633 return -ENOMEM; 1634 1635 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); 1636 if (!pmic) 1637 return -ENOMEM; 1638 1639 if (of_device_is_compatible(node, "ti,tps659038-pmic")) { 1640 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr = 1641 TPS659038_REGEN2_CTRL; 1642 palmas_ddata.has_regen3 = false; 1643 } 1644 1645 pmic->dev = &pdev->dev; 1646 pmic->palmas = palmas; 1647 palmas->pmic = pmic; 1648 platform_set_drvdata(pdev, pmic); 1649 pmic->palmas->pmic_ddata = driver_data; 1650 1651 ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data); 1652 if (ret) 1653 return ret; 1654 1655 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); 1656 if (ret) 1657 return ret; 1658 1659 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) { 1660 pmic->smps123 = 1; 1661 pmic->smps12 = 1; 1662 } 1663 1664 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) 1665 pmic->smps457 = 1; 1666 1667 config.regmap = palmas->regmap[REGULATOR_SLAVE]; 1668 config.dev = &pdev->dev; 1669 config.driver_data = pmic; 1670 pdev_name = pdev->name; 1671 1672 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name, 1673 config); 1674 if (ret) 1675 return ret; 1676 1677 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name, 1678 config); 1679 1680 return ret; 1681 } 1682 1683 static struct platform_driver palmas_driver = { 1684 .driver = { 1685 .name = "palmas-pmic", 1686 .of_match_table = of_palmas_match_tbl, 1687 }, 1688 .probe = palmas_regulators_probe, 1689 }; 1690 1691 static int __init palmas_init(void) 1692 { 1693 return platform_driver_register(&palmas_driver); 1694 } 1695 subsys_initcall(palmas_init); 1696 1697 static void __exit palmas_exit(void) 1698 { 1699 platform_driver_unregister(&palmas_driver); 1700 } 1701 module_exit(palmas_exit); 1702 1703 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); 1704 MODULE_DESCRIPTION("Palmas voltage regulator driver"); 1705 MODULE_LICENSE("GPL"); 1706 MODULE_ALIAS("platform:palmas-pmic"); 1707 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); 1708